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InlineJacksonTest.kt
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InlineJacksonTest.kt
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package tw.brandy.ironman
import com.fasterxml.jackson.annotation.JsonIgnore
import com.fasterxml.jackson.databind.ObjectMapper
import com.fasterxml.jackson.datatype.jdk8.Jdk8Module
import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
import com.fasterxml.jackson.module.paramnames.ParameterNamesModule
import io.quarkus.test.junit.QuarkusTest
import org.junit.jupiter.api.Assertions
import org.junit.jupiter.api.Test
import javax.inject.Inject
@JvmInline
value class MyInlineClass(val i: Int)
data class MyDataClass(val i: MyInlineClass, @JsonIgnore val _i:Int=0)
data class MyDataClassTwoProps(
val i: MyInlineClass,
val j: MyInlineClass
)
data class MyNormalDataClass(val i: Int)
class ObjectMapperInlineClassTest {
val objectMapper : ObjectMapper = jacksonObjectMapper()
.registerModule(Jdk8Module()).registerModule(ParameterNamesModule())
@Test
fun `data class without inline class`() {
val obj = MyNormalDataClass(1)
val json = objectMapper.writeValueAsString(obj)
Assertions.assertEquals("""{"i":1}""", json)
val deserialized = objectMapper.readValue(json,MyNormalDataClass::class.java) // works
Assertions.assertEquals(obj, deserialized)
}
@Test
fun `data class with one inline class`() {
val obj = MyDataClass(MyInlineClass(1))
val json = objectMapper.writeValueAsString(obj)
Assertions.assertEquals("""{"i":1}""", json)
val deserialized = objectMapper.readValue(json,MyDataClass::class.java)
Assertions.assertEquals(obj, deserialized)
}
@Test
fun `data class with two inline class`() {
val obj = MyDataClassTwoProps(MyInlineClass(1), MyInlineClass(2))
val json = objectMapper.writeValueAsString(obj)
Assertions.assertEquals("""{"i":1,"j":2}""", json)
val deserialized = objectMapper.readValue(json,MyDataClassTwoProps::class.java) // throws MismatchedInputException exception
Assertions.assertEquals(obj, deserialized)
}
}